| Name | 074360 |
| Title | Gamma Cas: double trouble |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0743600101 |
| DOI | https://doi.org/10.5270/esa-w0ttnn2 |
| Author | European Space Agency |
| Description | We propose to use the unique combination of high spectral resolution of XMM and the broadband coverage of NuSTAR to advance in the study of the nature of the mysterious Be/X-ray source gamma Cas. This object displays extreme conditions: a very hot plasma (>12 keV), a very hard spectrum, and a big circumstellar disk. Two hypotheses have been put forward to explain the origin of the X-ray emission in these objects: a) accretion onto a compact companion and b) emission from the star+disk interaction through stellar magnetic fields. Both of these challenge profoundly our current |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2014-07-24T13:33:09Z/2014-07-24T22:59:49Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2015-08-25T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2015, Gamma Cas: Double Trouble, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-w0ttnn2 |